| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.1 | 51.1 | 55.6 | 64.2 | 72.5 | 81.8 | 82.8 | 79.8 | 75.2 | 67.5 | 56.7 | 49.6 | 65.4 |
| Highest Mean Max. Temperature (F) | 57.4 | 55.5 | 64.7 | 72.8 | 78.2 | 87.5 | 86.9 | 84.0 | 78.3 | 72.2 | 63.3 | 57.3 | 68.5 |
| Year Highest Occurred | 1986 | 1967 | 1972 | 1989 | 1989 | 1990 | 1980 | 1962 | 1980 | 1979 | 1975 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 42.5 | 43.8 | 47.3 | 54.7 | 67.8 | 76.1 | 80.0 | 76.3 | 71.6 | 58.6 | 50.0 | 42.3 | 63.8 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1976 | 1976 | 1965 | 1986 | 1968 | 1964 | 1984 | 1972 | 1971 | 1964 |
| Mean Temperature (F) | 29.6 | 32.8 | 37.2 | 43.0 | 50.4 | 58.9 | 64.9 | 62.6 | 56.8 | 47.2 | 37.0 | 30.4 | 45.9 |
| Highest Mean Temperature (F) | 35.5 | 36.5 | 42.4 | 47.6 | 54.5 | 63.2 | 67.3 | 66.2 | 60.3 | 51.4 | 39.7 | 36.7 | 47.7 |
| Year Highest Occurred | 1986 | 1989 | 1972 | 1989 | 1984 | 1990 | 1971 | 1969 | 1983 | 1988 | 1962 | 1969 | 1986 |
| Lowest Mean Temperature (F) | 24.0 | 25.7 | 32.0 | 35.1 | 47.5 | 54.4 | 61.9 | 59.8 | 54.4 | 42.8 | 32.0 | 24.8 | 43.6 |
| Year Lowest Occurred | 1964 | 1966 | 1962 | 1976 | 1965 | 1965 | 1987 | 1968 | 1968 | 1970 | 1979 | 1961 | 1964 |
| Mean Min. Temperature (F) | 11.1 | 14.5 | 18.8 | 21.8 | 28.4 | 35.9 | 46.8 | 45.3 | 38.2 | 26.8 | 17.2 | 11.2 | 26.3 |
| Highest Mean Min. Temperature (F) | 17.7 | 20.5 | 23.6 | 26.2 | 31.9 | 41.1 | 50.7 | 49.9 | 43.7 | 35.6 | 23.2 | 20.5 | 29.4 |
| Year Highest Occurred | 1969 | 1968 | 1983 | 1986 | 1976 | 1972 | 1975 | 1986 | 1975 | 1972 | 1978 | 1983 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.5 | 6.6 | 14.5 | 15.5 | 24.1 | 29.4 | 41.6 | 41.2 | 32.8 | 19.9 | 11.3 | 4.0 | 23.4 |
| Year Lowest Occurred | 1964 | 1964 | 1964 | 1976 | 1967 | 1982 | 1987 | 1979 | 1968 | 1982 | 1980 | 1990 | 1964 |
| Mean Precipitation (in.) | 0.84 | 0.75 | 0.74 | 0.42 | 0.42 | 0.61 | 3.08 | 3.23 | 2.17 | 1.64 | 0.96 | 1.26 | 16.12 |
| Highest Precipitation (in.) | 2.74 | 3.29 | 2.53 | 2.04 | 1.72 | 1.69 | 5.71 | 5.68 | 6.16 | 6.11 | 4.13 | 5.60 | 26.72 |
| Year Highest Occurred | 1979 | 1980 | 1981 | 1988 | 1987 | 1986 | 1967 | 1983 | 1983 | 1972 | 1978 | 1967 | 1983 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.07 | 1.01 | 0.19 | 0.00 | 0.00 | 0.00 | 10.39 |
| Year Lowest Occurred | 1972 | 1984 | 1972 | 1989 | 1964 | 1989 | 1966 | 1975 | 1973 | 1973 | 1969 | 1981 | 1989 |
| Heating Degree Days (F) | 1097. | 902. | 862. | 660. | 453. | 191. | 42. | 94. | 246. | 552. | 840. | 1073. | 7012. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 39. | 19. | 0. | 0. | 0. | 0. | 66. |